Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/08/2026, 18:19

General

  • Target
    2026-08-17_b4ecc06873647511b3a7cd463e76fb8c_cryptolocker_elex.exe
  • Size 51KB
  • Sample260817-wyncpsfn6t
  • SHA256 af7937c828978f99434c54d2c8320dbcc65e020bd91bdced43f8f6b2de299a70
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-17_b4ecc06873647511b3a7cd463e76fb8c_cryptolocker_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-17_b4ecc06873647511b3a7cd463e76fb8c_cryptolocker_elex.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3144
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1180

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        hasfj.exe

        • Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
        • Size 51KB
        • SHA256 edbf9269b0bd6e226ce12eab5cddf11fd95099bb84035bdfafcad04804319c7b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1180-17-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1180-25-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/1180-19-0x00000000022C0000-0x00000000022C6000-memory.dmp

        memory/3144-0-0x0000000008004000-0x0000000008005000-memory.dmp

        memory/3144-1-0x0000000000660000-0x0000000000666000-memory.dmp

        memory/3144-2-0x0000000008000000-0x000000000800A000-memory.dmp

        memory/3144-3-0x0000000002280000-0x0000000002286000-memory.dmp